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-rw-r--r--lib/dbqueuemanager.php106
-rw-r--r--lib/queuemanager.php78
-rw-r--r--lib/stompqueuemanager.php122
3 files changed, 306 insertions, 0 deletions
diff --git a/lib/dbqueuemanager.php b/lib/dbqueuemanager.php
new file mode 100644
index 000000000..c0d4dcd29
--- /dev/null
+++ b/lib/dbqueuemanager.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Simple-minded queue manager for storing items in the database
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category QueueManager
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @author Sarven Capadisli <csarven@controlyourself.ca>
+ * @copyright 2009 Control Yourself, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ */
+
+class DBQueueManager extends QueueManager
+{
+ var $qis = array();
+
+ function enqueue($object, $queue)
+ {
+ $notice = (Notice)$object;
+
+ $qi = new Queue_item();
+
+ $qi->notice_id = $notice->id;
+ $qi->transport = $queue;
+ $qi->created = $notice->created;
+ $result = $qi->insert();
+
+ if (!$result) {
+ common_log_db_error($qi, 'INSERT', __FILE__);
+ throw new ServerException('DB error inserting queue item');
+ }
+
+ return true;
+ }
+
+ function nextItem($queue, $timeout=null)
+ {
+ $start = time();
+ $result = null;
+
+ do {
+ $qi = Queue_item::top($queue);
+ if (!empty($qi)) {
+ $notice = Notice::staticGet('id', $qi->notice_id);
+ if (!empty($notice)) {
+ $result = $notice;
+ } else {
+ $this->_log(LOG_INFO, 'dequeued non-existent notice ' . $notice->id);
+ $qi->delete();
+ $qi->free();
+ $qi = null;
+ }
+ }
+ } while (empty($result) && (is_null($timeout) || (time() - $start) < $timeout));
+
+ return $result;
+ }
+
+ function done($object, $queue)
+ {
+ $notice = (Notice)$object;
+
+ $qi = Queue_item::pkeyGet(array('notice_id' => $notice->id,
+ 'transport' => $queue));
+
+ if (empty($qi)) {
+ $this->log(LOG_INFO, 'Cannot find queue item for notice '.$notice->id.', queue '.$queue);
+ } else {
+ if (empty($qi->claimed)) {
+ $this->log(LOG_WARNING, 'Reluctantly releasing unclaimed queue item '.
+ 'for '.$notice->id.', queue '.$queue);
+ }
+ $qi->delete();
+ $qi->free();
+ $qi = null;
+ }
+
+ $this->log(LOG_INFO, 'done with notice ID = ' . $notice->id);
+
+ $notice->free();
+ $notice = null;
+ }
+
+ function _log($level, $msg)
+ {
+ common_log($level, 'DBQueueManager: '.$msg);
+ }
+}
diff --git a/lib/queuemanager.php b/lib/queuemanager.php
new file mode 100644
index 000000000..64aca1bc1
--- /dev/null
+++ b/lib/queuemanager.php
@@ -0,0 +1,78 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Abstract class for queue managers
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category QueueManager
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @author Sarven Capadisli <csarven@controlyourself.ca>
+ * @copyright 2009 Control Yourself, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ */
+
+class QueueManager
+{
+ static $qm = null;
+
+ static function get()
+ {
+ if (empty(self::$qm)) {
+
+ if (Event::handle('StartNewQueueManager', self::$qm)) {
+
+ $type = common_config('queue', 'sub');
+
+ switch ($type) {
+ case 'db':
+ self::$qm = new DBQueueManager();
+ break;
+ case 'stomp':
+ self::$qm = new StompQueueManager();
+ break;
+ default:
+ throw new ServerException("No queue manager class for type '$type'");
+ }
+ }
+
+ return self::$qm;
+ }
+ }
+
+ function enqueue($object, $queue)
+ {
+ throw ServerException("Unimplemented function 'enqueue' called");
+ }
+
+ function peek($queue)
+ {
+ throw ServerException("Unimplemented function 'peek' called");
+ }
+
+ function nextItem($queue, $timeout=null)
+ {
+ throw ServerException("Unimplemented function 'nextItem' called");
+ }
+
+ function done($object, $queue)
+ {
+ throw ServerException("Unimplemented function 'done' called");
+ }
+}
diff --git a/lib/stompqueuemanager.php b/lib/stompqueuemanager.php
new file mode 100644
index 000000000..20c6e7a34
--- /dev/null
+++ b/lib/stompqueuemanager.php
@@ -0,0 +1,122 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Abstract class for queue managers
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category QueueManager
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @author Sarven Capadisli <csarven@controlyourself.ca>
+ * @copyright 2009 Control Yourself, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://laconi.ca/
+ */
+
+require_once 'Stomp.php';
+
+class QueueManager
+{
+ var $server = null;
+ var $username = null;
+ var $password = null;
+ var $base = null;
+ var $con = null;
+ var $frames = array();
+
+ function __construct()
+ {
+ $this->server = common_config('queue', 'stomp_server');
+ $this->username = common_config('queue', 'stomp_username');
+ $this->password = common_config('queue', 'stomp_password');
+ $this->base = common_config('queue', 'queue_basename');
+ }
+
+ function _connect()
+ {
+ if (empty($this->con)) {
+ $this->con = new Stomp($this->server);
+
+ if (!$this->con->connect($this->username, $this->password)) {
+ $this->_log(LOG_ERR, 'Failed to connect to queue server');
+ throw new ServerException('Failed to connect to queue server');
+ }
+ }
+ }
+
+ function enqueue($object, $queue)
+ {
+ $notice = (Notice)$object;
+
+ $this->_connect();
+
+ $result = $this->con->send($this->_queueName($queue),
+ $notice->id, // BODY of the message
+ array ('created' => $notice->created));
+
+ if (!$result) {
+ common_log(LOG_ERR, 'Error sending to '.$transport.' queue');
+ return false;
+ }
+
+ common_log(LOG_DEBUG, 'complete remote queueing notice ID = '
+ . $notice->id . ' for ' . $transport);
+ }
+
+ function nextItem($queue, $timeout=null)
+ {
+ $result = null;
+
+ $this->_connect();
+
+ $frame = $this->con->readFrame();
+
+ if ($frame) {
+ $this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($frame->headers['created']));
+
+ // XXX: Now the queue handler receives only the ID of the
+ // notice, and it has to get it from the DB
+ // A massive improvement would be avoid DB query by transmitting
+ // all the notice details via queue server...
+ $notice = Notice::staticGet($frame->body);
+
+ if ($notice) {
+ } else {
+ $this->log(LOG_WARNING, 'queue item for notice that does not exist');
+ }
+ }
+ }
+
+ function done($object, $queue)
+ {
+ $notice = (Notice)$object;
+
+ $this->_connect();
+
+ $frame = $this->_getFrame($notice, $queue);
+
+ if (empty($frame)) {
+ $this->log(LOG_ERR, 'Cannot find frame for notice '.$notice->id.' in queue '.$queue);
+ } else {
+ // if the msg has been handled positively, ack it
+ // and the queue server will remove it from the queue
+ $this->con->ack($frame);
+ $this->log(LOG_INFO, 'finished broadcasting notice ID = ' . $notice->id);
+ }
+ }
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-08 18:31:26 +0000